Flowering Plants Visited
by Philanthus
sanbornii
Philanthus sanbornii Cresson: Sphecidae (Philanthinae), Hymenoptera
(observations are from Reed, Graenicher, and Wilhelm & Rericha)
Apiaceae: Eryngium yuccifolium sn (WR); Apocynaceae: Apocynum cannabinum sn (WR); Asteraceae: Achillea millefolium sn (WR), Solidago canadensis sn (Gr); Fabaceae: Amorpha canescens sn (Re), Dalea purpurea sn (Re); Lamiaceae: Pycnanthemum tenuifolium sn (WR); Rhamnaceae: Ceanothus herbaceus sn (WR)